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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: python-flask security update
Advisory ID:       RHSA-2023:3525-01
Product:           Red Hat Enterprise Linux Extras
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:3525
Issue date:        2023-06-07
CVE Names:         CVE-2023-30861 
=====================================================================

1. Summary:

An update for python-flask is now available for Red Hat Enterprise Linux 7
Extras.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux 7 Extras - noarch

3. Description:

Flask is a lightweight but extensible web development framework for Python
based on the Werkzeug WSGI toolkit, and the Jinja 2 template engine.

Security Fix(es):

* flask: Possible disclosure of permanent session cookie due to missing
Vary: Cookie header (CVE-2023-30861)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

2196643 - CVE-2023-30861 flask: Possible disclosure of permanent session cookie due to missing Vary: Cookie header

6. Package List:

Red Hat Enterprise Linux 7 Extras:

Source:
python-flask-0.10.1-7.el7_9.src.rpm

noarch:
python-flask-0.10.1-7.el7_9.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2023-30861
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.
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